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A kind of high thermal conductivity graphene/nylon composite material and preparation method thereof

A technology of nylon composite material and high thermal conductivity graphite, which is applied in the field of high thermal conductivity graphene/nylon composite material and its preparation, can solve problems such as poor thermal conductivity, and achieve the effect of improved compatibility and strong interface adhesion

Inactive Publication Date: 2016-01-20
SHANGHAI YUEDA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention mainly solves the technical problem of poor thermal conductivity in the development of existing thermally conductive polymer composite materials, and provides a composite material with excellent thermal conductivity, good corrosion resistance, high temperature resistance, and high comprehensive mechanical strength and its preparation method

Method used

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  • A kind of high thermal conductivity graphene/nylon composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] High thermal conductivity graphene / nylon composite material of the present invention, its component is by mass fraction, chooses 40 parts of nylon, 4 parts of expandable graphite, 0.8 part of amphiphilic pyrene graft, 10 parts of highly oriented silicon nitride fiber, 10 parts of carbon fiber, 7 parts of boron nitride, 0.1 part of high temperature resistant agent, 0.3 part of antioxidant, 1 part of anti-hydrolysis agent, 4 parts of toughening agent, first place expandable graphite and amphiphilic pyrene grafts together Ultrasonic oscillation for 3 hours in a mixed solvent with a certain ratio of H2O / MeOH=6 / 4, and then centrifuged at 1200rpm for 16min, the supernatant is the dispersed graphene solution, and the supernatant was placed for 70 ℃ oven drying 15h to obtain dry powdery graphene. Then the prepared graphene powder and nylon particles were mixed evenly, and ground in a three-roll mill for 10 min, and set aside. Finally, the uniformly mixed nylon / graphene particl...

Embodiment 2

[0030] High thermal conductivity graphene / nylon composite material of the present invention, its component selects 40 parts of nylons, 5 parts of expandable graphites, 1 part of amphiphilic pyrene grafts, 15 parts of highly oriented silicon nitride fibers by mass parts, 5 parts of carbon fiber, 5 parts of boron nitride, 0.3 part of high temperature resistant agent, 0.2 part of antioxidant, 1 part of anti-hydrolysis agent, 6 parts of toughening agent, first place the expandable graphite and the amphiphilic pyrene graft on the Ultrasonic oscillation in a mixed solvent with a certain ratio of H2O / MeOH=7 / 3 was carried out for 3 hours, and then centrifuged at 1300 rpm for 20 minutes. The supernatant was the dispersed graphene solution, and the supernatant was placed for 90 ℃ oven drying 18h to obtain dry powdered graphene. Then the prepared graphene powder and nylon particles were mixed evenly, and ground in a three-roller mill for 12 min, and set aside. Finally, mix the uniformly...

Embodiment 3

[0032]High thermal conductivity graphene / nylon composite material of the present invention, its component selects 50 parts of nylons, 5 parts of expandable graphites, 1.2 parts of amphiphilic pyrene grafts, 12 parts of highly oriented silicon nitride fibers in parts by mass, 8 parts of carbon fiber, 8 parts of boron nitride, 0.5 part of high temperature resistant agent, 0.4 part of antioxidant, 1.2 parts of anti-hydrolysis agent, 8 parts of toughening agent, first place the expandable graphite and the amphiphilic pyrene graft on the Ultrasonic oscillation in a mixed solvent with a certain ratio of H2O / MeOH=7 / 5 was carried out for 3 hours, and then centrifuged at 1400rpm for 20min. The supernatant was the dispersed graphene solution. Place the supernatant for 100 ℃ oven drying 18h to obtain dry powdered graphene. Then the prepared graphene powder and nylon particles were mixed evenly, and ground for 16 min in a three-roller mill, and set aside. Finally, mix the uniformly mixed...

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Abstract

The invention discloses a high thermal conductivity graphene / nylon composite material and a preparation method thereof. In parts by weight, it contains 30-80 parts of nylon, 4-8 parts of expandable graphite, 0.5-1.5 parts of amphiphilic pyrene graft, 1-20 parts of highly oriented silicon nitride fiber, 1-15 parts of carbon fiber, nitrogen 5-10 parts of boron compound, 0.02-4 parts of high temperature resistance additive, 0.02-0.8 part of antioxidant, 1-3 parts of anti-hydrolysis agent, and 2-6 parts of toughening agent. The present invention adopts a novel heat conduction additive to improve the thermal conductivity of nylon. The heat conduction aid is graphene prepared from expandable graphite and amphiphilic pyrene grafts through a liquid-phase ultrasonic stripping method. The advantage of this new type of thermal conductivity additive is that it can disperse graphene evenly in the matrix resin, and it can also strengthen the interfacial adhesion between graphene and nylon and improve the compatibility.

Description

technical field [0001] The invention relates to a high thermal conductivity graphene / nylon composite material and a preparation method thereof, in particular to a high thermal conductivity graphene / nylon 6 or nylon 12 or nylon 66 composite material and a preparation method thereof. technical background [0002] Nylon has excellent comprehensive properties such as good mechanical properties, good flexibility, wear resistance, oil resistance, self-lubrication, etc., and is widely used in the fields of automobile industry, electronic and electrical industry, mechanical equipment, construction industry and so on. Due to its advantages of short processing cycle, low production cost, long service life and high degree of product design freedom, it has been more and more widely used. In recent years, its application in thermal conductive polymer composite materials is particularly prominent. For example, DSM produces The high-power LED radiator has been generally recognized by the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08L77/02C08L77/06C08K13/06C08K9/06C08K9/04C08K7/10C08K7/06C08K7/24C08K3/04C08K3/38B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/92704C08K3/38C08K7/06C08K7/10C08K7/24C08K9/04C08K9/06C08K9/08C08K13/06C08K2003/385C08K2201/003C08L2201/08C08L77/00B29C48/40B29C2948/92552B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 蔡铜祥成文俊杨玉晴
Owner SHANGHAI YUEDA NEW MATERIAL TECH
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